Stuart Gentling, to David Holman. February 1, 1985.

Spencer B. Beebe, Vice President, Director, The Nature Conservancy International Program, Portland, Oregon, to Eliot Porter. May 16, 1984.

Eliot Porter to Jack L. Cross, Director, University of Arizona Press. November 22, 1964.

Bill Utley, U.S.S. Oriskany CVA-34, San Francisco, California, to Stuart Gentling. November 23, 1961.

Peter B. Shoenfeld, Neil C. Stillinger, and Larry C. White, Attorney at Law, Santa Fe, New Mexico, to Hon. Edwin L. Mechem, Senior District Judge. June 11, 1986.

Beaumont [Newhall], The Museum of Modern Art, New York, New York, to Eliot Porter. February 26, 1946.

E. Donald Robb, Frohman, Robb, & Little Architects, Boston, Massachusetts, to Laura Gilpin. February 29, 1928.

Jon Burris, Director of Photography, National Cowboy Hall of Fame, Oklahoma City, Oklahoma, to Laura Gilpin. September 23, 1977.

Clipping, “Army Topographical Division Co-ordinates Work of Map Makers in Air and on Ground,” Engineering News-Record, Volume 80, Number 21. May 23, 1918.

Anne Dirkes Kobor, National Geographic Society, Washington, D.C., to Eliot Porter. July 9, 1963.

Beaumont Newhall, Curator, George Eastman House, Rochester, New York, to Eliot Porter. November 19, 1956.

Leonard Kalina, Leonard Kalina Fine Arts, Venice, California, to Stuart Gentling. April 30, 2004.

[Scott Gentling], to Harlan Crow. February 16, 1996.

New York Indians. "The Ditch Diggin'est Crew" and other articles. n.d.

Alexander L. Crosby, Quakertown, Pennsylvania, to Laura Gilpin. April 11, 1967.

Judith Hudson, to Carlotta Corpron. May 30, 1961.

Lloyd G. Henbest, Washington, D. C., to Laura Gilpin. May 24, 1955.

Laura Gilpin, Santa Fe, New Mexico, to Carol Preston. June 24, 1955.

Memorandum to Members of the Birds of Prey Natural Area Committee. July 26, 1978.

Laura Gilpin, Colorado Springs, Colorado, to Randall Davey. June 28, 1937.